Yethula:
Amadayimane kanyei-graphiteyizinhlobo ezimbili ezahlukene zekhabhoni esezithathe imicabango yethu amakhulu eminyaka.Ngokungeziwe ekubukekeni kwazo okumangalisayo kanye nokusebenza kwezimboni ezihlukahlukene, lezi zinto zinezici ezikhangayo ezizenza zihluke kwezinye.Enye yalezi zakhiwo yindawo yazo yokuncibilika.Kulokhu okuthunyelwe kwebhulogi, thina'izongena emhlabeni othakazelisayo wedayimane ne-graphite, ihlole izici ezithonya amaphuzu azo ancibilikayo futhi iveze izici zayo ezihlukile.
Iphoyinti lokuncibilika kwedayimane:
Amadayimane avame ukubizwa ngokuthi inkosi yamatshe ayigugu futhi aziwa ngobulukhuni bawo nokucwebezela okuhle.Kodwa-ke, uma kuziwa ezindaweni ezincibilikayo, amadayimane abonisa ukumelana nokushisa okungavamile.Njengobuhle bayo obumangalisayo, ukwakheka kwamangqamuzana edayimane kudlala indima ebalulekile ekunqumeni indawo yalo ephezulu yokuncibilika.
Isakhiwo se-lattice sedayimane siqukethe ama-athomu ekhabhoni ahlelwe ngephethini ye-tetrahedral.Le nethiwekhi eqinile enezinhlangothi ezintathu ayinqamuki kalula, inika amadayimane indawo yokuncibilika ephezulu ngokungavamile.Idayimane alikwazi ukumelana nokushisa ngendlela emangalisayo, futhi izinga lokuncibilika licishe libe ngu-3,550 degrees Celsius (6,372 degrees Fahrenheit).Ngaleli phuzu lokuncibilika, idayimane ingakwazi ukumelana nezinga lokushisa elidlulele, iyenze ifaneleke ezinhlobonhlobo zezicelo zezimboni, njengamathuluzi okusika kanye nezindawo ezishisa kakhulu.
Iphoyinti lokuncibilika le-graphite:
Ngokuphambene kakhulu nedayimane, i-graphite inokwakheka kwamangqamuzana okuhluke ngokuphelele, okuphumela ekubeni indawo yokuncibilika ibe ngaphansi kakhulu.I-graphite iqukethe izendlalelo zama-athomu e-carbon ahlelwe ngephethini ene-hexagonal, yakhe uchungechunge lwama-flakes astakiwe.Amashidi abanjwe ndawonye amandla abuthakathaka e-intermolecular, okwenza kube lula ukuphazamisa isakhiwo se-lattice lapho kushisa.
Isakhiwo samangqamuzana e-graphite siyinikeza ukuguquguquka okuhle kukagesi futhi inezinto zokugcoba ngenxa yokushelela kwezingqimba zayo.Nokho, igraphite nedayimane zinamaphuzu aphansi ancibilika.I-graphite inendawo yokuncibilika ecishe ibe ngu-3,500 degrees Celsius (6,332 degrees Fahrenheit) futhi inokumelana nokushisa okuphansi uma kuqhathaniswa nedayimane.
Kungani lo mehluko ubalulekile:
Ukuqonda amaphuzu okuncibilika kwedayimane ne-graphite kubalulekile ngezizathu eziningana.Ngokombono wesayensi, kuveza ukuthi ikhabhoni ibonisa izinto ezihlukahlukene ezibonakalayo ngokusekelwe ekuhlelweni kwayo ezingeni lamangqamuzana.Ukwengeza, imboni ingasebenzisa lolu lwazi ukukhetha uhlobo olufanele lwekhabhoni yezinhlelo zokusebenza ezithile, ngaleyo ndlela yandise ukusebenza kahle nokusebenza.
Nakuba idayimane ne-graphite kunamaphoyinti ancibilika asondele kakhulu, ukwakheka kwawo kwamangqamuzana ahlukene kanye nezakhiwo eziwumphumela kunikeza amathuba ahlukene okusetshenziswa kwawo.Iphuzu eliphakeme lokuncibilika ledayimane lilenza libe yigugu ezindaweni ezinokhahlo, kuyilapho indawo encibilikayo ephansi ye-graphite ithuthukisa ukufaneleka kwayo ezinhlelweni ezidinga ukuqhutshwa kukagesi nokugcotshwa.
In isiphetho:
Kafushane, amaphuzu ancibilikayo edayimane ne-graphite ayisici esithakazelisayo salezi zinhlobo zekhabhoni ezingavamile.Umehluko uba sobala ngoba idayimane linephuzu elincibilikayo eliphakeme kakhulu kuyilapho igraphite inephuzu lokuncibilika eliphansi uma kuqhathaniswa.Izinhlaka ezahlukene zamangqamuzana alaba bazala bekhabhoni.banikeze izakhiwo eziyingqayizivele futhi ubenze insiza ebalulekile yezimboni ezihlukahlukene.Ngokuqonda ama-nuances angemuva kwamaphuzu awo ancibilikayo, singakwazi ukufunda okwengeziwe ngomhlaba ongavamile wamadayimane ne-graphite, sikhulise ukwazisa kwethu ngezimfanelo zawo eziyingqayizivele.
Isikhathi sokuthumela: Nov-17-2023